Ammonium acetate | Sigma-Aldrich
Ammonium acetate mediated synthesis of 5-substituted …
Metallic calcium presented clear advantages: () it did not bring into thesynthesis solutions any foreign or spectator anions, such as nitrates,chlorides or acetates, and () itcaused deprotonation of theaqueous synthesis media resulting in a smooth and rapid pH increase (as shownbelow), totally eliminating the need for base (,KOH, , NH4OH, etc.) additions tomaintain the synthesis pH above neutral.
Acetoacetic Ester Synthesis of Amphetamine - Erowid
The major drawback associated with the use of calcium nitrate or calciumacetate was that the synthesized phases would be poisoned by the residualnitrate or acetate ions, as it was experimentally proven by .